module Spielbash::CLI

Public Instance Methods

which(cmd) click to toggle source

Cross-platform way of finding an executable in the $PATH.

which('ruby') #=> /usr/bin/ruby
# File lib/spielbash/view/cli.rb, line 16
def which(cmd)
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
  ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
    exts.each {|ext|
      exe = File.join(path, "#{cmd}#{ext}")
      return true if File.executable?(exe) && !File.directory?(exe)
    }
  end
  false
end